block labels

compiler/hir/hir.odin

@@ -156,6 +156,9 @@ Stmt_Kind :: enum u8 {
 	For,
 	Break,
 	Continue,
+	// A labeled value block (`blk: { … yield :blk v }`): lowers to its `then_body`
+	// followed by an exit label, so a `yield :blk` (a labeled break) lands after it.
+	Block,
 }
 
 Assignment_Op :: enum u8 {
@@ -172,6 +175,9 @@ Stmt :: struct {
 	span:       source.Span,
 	local:      Local_Id,
 	index_local: Local_Id,
+	// `While`/`For`/`Block` may carry a label; a labeled `Break`/`Continue` targets the
+	// matching enclosing loop or value block. `INVALID` when absent.
+	label:      symbol.Id,
 	target:     Expr_Id,
 	expr:       Expr_Id,
 	iterator_type: types.Type,